<template>
  <button @click="isShowDemo = !isShowDemo">切换隐藏显示</button>
  <Demo v-if="isShowDemo"></Demo>
</template>
<script>
import { ref } from '@vue/reactivity';
import Demo from './components/Demo.vue'
export default {
  name: "APP",
  components:{Demo},
  setup(props) {
    let isShowDemo = ref(true);
    return {
      isShowDemo
    }
  },
  
};
</script>